128 lines
4.3 KiB
C
128 lines
4.3 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2014 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <unistd.h>
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#include "util.h"
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#include "special.h"
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#include "mkdir.h"
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#include "unit-name.h"
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#include "generator.h"
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#include "path-util.h"
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#include "fstab-util.h"
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#include "dropin.h"
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int generator_write_fsck_deps(
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FILE *f,
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const char *dir,
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const char *what,
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const char *where,
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const char *fstype) {
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int r;
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assert(f);
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assert(dir);
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assert(what);
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assert(where);
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if (!is_device_path(what)) {
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log_warning("Checking was requested for \"%s\", but it is not a device.", what);
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return 0;
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}
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if (!isempty(fstype) && !streq(fstype, "auto")) {
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r = fsck_exists(fstype);
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if (r == -ENOENT) {
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/* treat missing check as essentially OK */
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log_debug_errno(r, "Checking was requested for %s, but fsck.%s does not exist: %m", what, fstype);
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return 0;
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} else if (r < 0)
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return log_warning_errno(r, "Checking was requested for %s, but fsck.%s cannot be used: %m", what, fstype);
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}
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if (path_equal(where, "/")) {
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char *lnk;
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lnk = strjoina(dir, "/" SPECIAL_LOCAL_FS_TARGET ".wants/systemd-fsck-root.service");
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mkdir_parents(lnk, 0755);
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if (symlink(SYSTEM_DATA_UNIT_PATH "/systemd-fsck-root.service", lnk) < 0)
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return log_error_errno(errno, "Failed to create symlink %s: %m", lnk);
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} else {
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_cleanup_free_ char *fsck = NULL;
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r = unit_name_from_path_instance("systemd-fsck", what, ".service", &fsck);
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if (r < 0)
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return log_error_errno(r, "Failed to create fsck service name: %m");
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fprintf(f,
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"RequiresOverridable=%1$s\n"
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"After=%1$s\n",
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fsck);
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}
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return 0;
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}
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int generator_write_timeouts(
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const char *dir,
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const char *what,
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const char *where,
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const char *opts,
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char **filtered) {
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/* Allow configuration how long we wait for a device that
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* backs a mount point to show up. This is useful to support
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* endless device timeouts for devices that show up only after
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* user input, like crypto devices. */
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_cleanup_free_ char *node = NULL, *unit = NULL, *timeout = NULL;
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usec_t u;
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int r;
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r = fstab_filter_options(opts, "comment=systemd.device-timeout\0" "x-systemd.device-timeout\0",
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NULL, &timeout, filtered);
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if (r <= 0)
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return r;
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r = parse_sec(timeout, &u);
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if (r < 0) {
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log_warning("Failed to parse timeout for %s, ignoring: %s", where, timeout);
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return 0;
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}
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node = fstab_node_to_udev_node(what);
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if (!node)
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return log_oom();
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r = unit_name_from_path(node, ".device", &unit);
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if (r < 0)
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return log_error_errno(r, "Failed to make unit name from path: %m");
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return write_drop_in_format(dir, unit, 50, "device-timeout",
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"# Automatically generated by %s\n\n"
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"[Unit]\nJobTimeoutSec=" USEC_FMT,
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program_invocation_short_name,
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u / USEC_PER_SEC);
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}
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